Extension table



. G. FROEL'ICH.

EXTENSION TABLE. APPLICATION FILED JAN. 10. I922.

Patented Nov. 141, 1922.

2 SHEETSSHEE] 1.

Gemrge Frme'Lich G. FROELICH.

EXTENSION TABLE. APPLICATION FILED JAN. I0, 1922.

Patented Nov. M, 1922.

2 SHEETSSHEET 2.

GEORGE FROELICH, 0F TWO RIVERS, WISCONSIN.

EXTENSION TABLE.

Application filed January 10, 1922. Serial No. 528,284.

T 0 all whom it may concern 7 Be it known that T, Gnonen Fnonniorr, a citizen of the United States, and resident of Two Rivers, in the county of lWZanitowoc and State of lVisconsin, have invented certain new and useful. Improvements in Extension Tables; and I do hereby declare that the following is a full, clear, and exact description thereof.

The novel table comprises plurality of leaves, raising blocks thereon, cam arms, and means for shifting the cam arms as the table is extended to cause the arms cooperating with the blocks to raise the leaves to elevated position. Pins are provided for limiting the upwardv movement of the leaves and securing them in a suitable manner when elevated. Manually operablemeans are provided for shifting the cam arms so that they may actupon the last leaf exposed and raise it or lower it as desired.

Objects of the invention are automatic action, the leaves coming up in sequence as the table is drawn apart;the securing of the elevated leaves in suitable position; the obviating of the inconvenience of tables now in use which necessitate a searching around for lost leaves when it is desired to extend the table and the putting away of leaves when the table is shortened; quickness of operation and general convenience, the table being extensible without taking off the table spread, dishes, or any other load. I

The additional objects are simplicity of construction, durability of parts, and ease of manufacture.

Reference is had to the accompanying drawings, in which- Figure 1 is a plan view of-the table eX- tended showing the leaves in position and other operating parts in dotted lines.

Figure 2 is a similar plan showing the leaves in dotted lines.

Figure 3 is a plan view similar to Figure 1, but showing the table in unextended position.

Figure 4 is a plan similar to Figure 2, but showing the table in unextended position.

Figures 5 and 6 are cross sections on the lines 55 of Figure 3 and 6-6 of Figure 2, respectively.

The same reference characters indicate the same parts throughout the drawings.

The table comprises two main supported sections. End piece 10 of one section is secured to corner pieces 11 and to end frame member 12 rigid with side frame members 13 between which transverse frame member 14 extendsso that members 12, 13, and 14 make up a complete frame. Guides 15 and are rigid with this frame, functioning as will presently be explained. aigid with side frame members 13 are guides 17. Secured to end piece 10 and corner pieces 11 is the major top portion 18. The other table 5 section comprises an end piece 10, corner pieces 11, end frame member 12 and minor top portion 18. Rigid with end frame member 12 are side pieces 19 provided with longitudinally extending guides 20 and 21 which receive slides 17 therein and permit free endwise movement thereof.

Side pieces 19 are cut away from shoulders 22 and 23. In the cut away portion leaves 24, 25, 26, and 27 are positioned, pins tends, having pivots 34 on which levels 35 are rotatably mounted having superimposed ends slotted to receive pin 36 secured to rod 37 extending through an opening in end piece 10 and havin a knob 38 on its end.

On the other ends of levers 35 cam arms 39 are pivoted at 40 provided with successive camming portions 41, 42, 43, and 44.

Guides 21 are provided with inwardly projecting stops 45 and reinforcing blocks 46 are secured to end frame member 1 and 5 provided with stops 47 adapted to co-operate with levers 35 to limit the extension of the table.

In the operation of the device, the two table sections may be moved from. the position 00 shown in Figures 3 and 4 to that shown in Figures 1 and 2. Any desired number of leaves 24, 25, 26, and 27 may be exposed. During the movement of the table sections to the position shown in Figures 1 and 2, 5

guides 15 and 16 move relatively to arms 39 and when contacting with the camming portions 41, 42, 43, and 44, shift arms 39 inwardly. On the inward movement, the cam arms contact. with the inclined faces 32' of 11s the lifting blocks. Since arms 39 assume a position of inclination vith respect to provided with 80 side of the table, lifting blocks 31 are secured to leaf 2 1 in disalined position as are, also, blocks 82 so that cam arms 39 contact with the faces 32 substantially simultaneously. Leaves 2a, 25, 26, and 27 are moved straight up, lateral movement being prevented by pins 28. In their extreme upper position they are supported as shown in Figure 6 and are in stable position.

In Figure 1. leaf 27 is shown in lower position while leaves 24;, 25, and 26 are elevated. By pushing on the handle 38, rod 37 is pushed inwardly, rotating levers 35 on pivots 34!: and moving pivots 10 in an opposite direction to that of handle 38. The movement of pivots 10 causes camming portions 4 1 in contact with the guides 15 and 16 to throw cam arms 39 inwardly. The relative positions are shown in Figures 1 and 2. On the moving inwardly of cam arms 39 they contact with the lifting blocks on leaf 27, and elevate it to upper position. The manual operation of handle 38 is necessary only for the last leaf exposed. If, for instance, leaf 27 is the last one exposed, leaves 24, 25, and 26 have been elevated automatically and the operation of handle 38 serves to lift leaf 27. If leaf 26 were the last one exposed, cam portions 43 would occupy a position with respect to guides 15 and 16 similar to the position of camming portions 44 in Figure 1. The moving inwardly of the handle would then cause cam arms 39 to contact with the lifting blocks on leaf 26 and lift the leaf.

It will be noted that the leaves 24, 25, 26, and 27 are lifted in sequence and each preceding leaf is lifted to its upper position before the cam arm contacts with the lifting blocks of the next succeeding leaf.

When the parts are in the position shown in Figure 2 and it is desired to shorten the table, handle 38 is pulled out, cam arms 39 being moved outwardly because of the action of guides 15 and 16 and leaf 27 will be dropped to the position shown in Figure 1, The two table sections may then be pushed towards each other and the leaves are lowered in sequence. It will be noted that cam arms 39 are supported at their freed ends by end frame member 12 It is apparent, therefore, that a table is provided which obviates the inconvenience of the present type of table which is capable of quick extension and which provides for the rigid securing of the leaves in their elevated position. 7

Obviously the invention is capable of diverse embodiments and applicant does not limit himself to the form. illustrated, but

contemplates a substantial. range of equivalents within the scope of the appended claims.

I claim 1. In an automatic extension table, a plurality of table sections, a plurality of leaves, raising blocks on said leaves, cam arms cooperating with said blocks to raise said leaves, and means automatically operable by the separation of said sections for moving said cam arms to contact with the raising blocks to lift said leaves in sequence.

2. In an automatic extension table, the combination of a plurality of tablev sections a plurality of leaves, blocks on said leaves, cam arms for lifting said blocks and guides for cooperating with said cam arms and automatically operable on the separation of said table sections to lift said leaves in sequence. v

3. In an automatic extension table, the combination of a plurality of table sections, a plurality of leaves, blocks on said leaves, cam arms for lifting said blocks, guides for cooperating with said cam arms automatically operable on separation of said table sections to lift said leaves in sequence, and pins for limiting the upward movement of said leaves and securingthem in position.

1-. In an automatic extension table, a plurality of table sections, a plurality of leaves, lifting blocks on said leaves, cam arms for contacting with said blocks for raising said leaves, guides cooperating with said cam arms automatically operable on separation of said table sections to lift said'leaves in sequence as the table is extended, and manually operable means for lifting the last leaf exposed.

In testimony that I claim the foregoing I have hereunto set my hand atTwo Rivers, in the county of Manitowoc and State of Wisconsin.

GEORGE FROELICII. 

